st: Combining -forvalues- and -foreach-

Dear Statalisters,
I have a list of string (with numeric meaningful numeric text)
variables: p1_2000 p1_ 2001 p1_2003 p1_2004 p1_2005 p1_2006
I was trying to -destring- them using the next code, but it is not working:
forvalues i = 0/6 {
foreach v of p1_200`i' {
destring `v', replace
}
}
Please, could you tell me if it is posible to do this loop combining
the -forvalues- and the -foreach- commands, and if it is not posible,
would you give an idea of a "good" way to do it.
Thank you in advance,
Leonor
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